Robert Douglas (1727–1809) was a Scottish-born soldier who was commander of the garrison city of 's-Hertogenbosch in the Netherlands from 1780 to 1794. He was governor there from 1784. Douglas was a major-general from 1778, and replaced Ludwig Ernst von Brunswick-Lüneburg-Bevern at 's-Hertogenbosch. He was the son of George Douglas of Friarshaw and his wife, Elizabeth Scott (daughter of Sir Patrick Scott, Bart. of Ancrum). His grandfather was Henry Douglas, 6th laird of Friarshaw.